481666447 has 2 divisors, whose sum is σ = 481666448. Its totient is φ = 481666446.

The previous prime is 481666441. The next prime is 481666459. The reversal of 481666447 is 744666184.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481666447 - 2³ = 481666439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481666397 and 481666406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481666441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240833223 + 240833224.

It is an arithmetic number, because the mean of its divisors is an integer number (240833224).

Almost surely, 2^481666447 is an apocalyptic number.

481666447 is a deficient number, since it is larger than the sum of its proper divisors (1).

481666447 is an equidigital number, since it uses as much as digits as its factorization.

481666447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 46.

The square root of 481666447 is about 21946.9006240061. The cubic root of 481666447 is about 783.8785815847.

The spelling of 481666447 in words is "four hundred eighty-one million, six hundred sixty-six thousand, four hundred forty-seven".